Can-opener.



No. 63|,955. Patented Aug. 29, |899.

J. H. DAWSON.

CAN OPENER.

(Application'led Nov. 9, 189B.) (No Model.)

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ATTORNEY.

mi mums PErzns no., FNUYoLITHo. WASHINGTON. n. c.

UNITED STATES PATENT OFFICE.

JOHN I-I. DAIVSON, OF OXFORD, PENNSYLVANIA, ASSIGNOR. OF ONE-HALF TO JOHN W. WOODSIDE, OF PHILADELPHIA, PENNSYLVANIA.

CAN-OPEN ER.

SPECIFICATION forming part of Letters Patent No. 631,955, dated August 29, 1899. Application filed N Ovembel 9. 1898. Serial No. 695,921. (No model.)

.T @ZZ whom, if may concern.-

Be it known that I, JOHN H. DAWSON, of Oxford, in the county of Chester, State of Pennsylvania, have invented certain new and useful Improvements in Can-Openers, .of which the following is a specification, reference being had to the accompanying drawings, form ing part thereof.

My invention consists, primarily, of ashaft or pick adapted for puncturing and a cutterdisk which revolves upon this shaft as an axis, the shaft serving to secure a pivotal fulcrum and an axis about which the cutter-cylinder revolves.

rlhe object of my improvement is to provide a device by means of which the head of acan is removed or cut out with facility Without leaving ragged projecting edges or injuring the hands.

In the accompanying drawings, Figure l is a perspective view of my invention in operative position. Fig. 2 is a side elevation of the device,partially in section,illustratin g the relations of the details. Fig. 3 is a sectional view on the line da. of Fig. 2. Fig. tis a sectional view on the line b b of Fig. 2. Fig. 5 is a side view, partially in section, illustrating a modification of my invention.

Referring to the drawings, the shaft or pick 1 is provided with a puncturing-point 2 and a head 3. The cutter-disk4 is provided with a hub 5, which is sleeved upon the shaft about which the cutter-disk and hub revolve. A handle Gis likewise sleeved upon the shaft and moves freely along it for a limited distance, the shaft passing through the handle and being capable of control by means of its projecting head. The movements of the handle and shaft with respect to each other are limited by means of a stud 7, which is set in the handle and projects into a longitudinal groove 8 in the shaft, this groove being of such length as may be desired for varying the length of the pick or projecting point of the shaft.

A guard 9, having a projecting flange 10 and a thumb-rest 11, is carried by the handle. Theface l2 of the handle forms. a bearing for the hub of the cutter-disk the outward movement of which is limited by the iiange l0. 'lhe cutter-disk is preferably provided with a serrated periphery, as illustrated.

In constructing the details of the device it is evident that various modifications may be made without affecting the principle upon which myinvention operates or the resulting action. For example, the hub of the cutterdisk may be provided with a controlling-disk 13 and the guard with a flange l0 for engaging this controlling-disk and limiting the outward movement of the cutter-disk.

In operation, the pick is thrust through the center of the can-head 14 and brought to the position illustrated in Fig. 1, the point o f the pick extending to the periphery 15 of the can and the cutter-disk making an incision in the head opposite thereto. With the shaft or pick thus fulcrumed the tool is revolved about this pivotal point and the cutter-disk, following the periphery of the can,cuts out its head. A clean cut is made, and the entire head may be removed readily, as the cutter-disk follows closely along the periphery of the can.

Having thus described my invention, I

l. In a can-opener, in combination, a shaft or pick, a handle loosely sleevedthereon, said shaft sliding through said handle, and having a head for controlling its relation with said handle, means for limiting the longitudinal movement of said shaft through said handle, a cutter-disk loosely sleeved on and revoluble about said shaft, and means carried bysaid handle for controlling the longitudinal movement of said cutter-disk, substantially as specified.

2. In a can-opener, a handle, a pick or shaft having limited longitudinal movement through said handle, a cutter-disk revoluble on said shaft and bearing against said handle, and a guard carried by said handle,said guard being provided With a flange which limits the outer movement of saidcutter-disk, substantially as specified.

3. In a can-opener, a shaft or pick, a handle loosely sleeved on said shaft, a groove and stud for limiting the relative longitudinal movements of said shaft and handle, a cutterdisk and a hub therefor revolubie on said myhand in l@he presence of the subscribing shaft and bearing against said handle, and a, witnesses.

Guard carried by said handle, said {fuzu'd being provided With a ange which imits the JOHN 1I' DAVSON outward movement'of said disk, substantially VVitnesseS: as specified. THEODORE K. STUBBS, n

In testimony whereof I have hereunto set D. A. STUBBS. 

